Method of casting steel frames



Nav. 2o, 1923.

F. BRINER METHOD 0F CASTINGSTEEL FRAMES Patented Nov. 20, 1923.

" '@U NIT EDJSTAI Es?.A 0 ENCE,

FRANK BRINER, OE cHEsTE'R',jr

CORPORATION, OE NEW lYoRK,' N.

ENN'SYLVAN'I, AssiclNoR TofrENN SEABOARD STEEL SLA'r CORPORATION' OE NEW YORK; i -1 3" METHOD AOE CASTING STEEL EAM'S Application filed October of forming the elongated steel side frames of steam andelectric locomotives and the invention especially contemplates a-methodv of procedure whereby it is possible to obtain sound, dense castings, free from-.checks and cracks, as well asfrom internal stresses set up incooling and which shall.V be of. such a constitution as to render failureunlikely. under conditions of use. fr A These objects and other advantageous end I attain as hereinafterset forth, reference beings/had l to thej accompanying drawings, ln Wl'llCh, y i Figl-1 is a'VerticaLsection-on the line lfl,

Fig. 2, showing a mold with the castingtherein made in accordance twith1ny. .inven thelineA-f, Fig.- 2. Q my, Inx casting the elongated trussed structures commonly known as side frames in locpmo` tive structures, Iy Ihave discOVered; -that` 'the erti'cal section on best. results jcanbe `:obtained ijfjthe mold beg...

so lconstructed and, positioned that: said frames .are cast in a verticahrather thanfa horizontal plane` and the bestproduct is .obitained if each, framebefcast; 4with theftop trame member occupying the l. highest .poshtion inthe mold.: v f Incarrying out my inventionthere'fore, providet a narrow,.elongated mold boxhzwft ing two outside sections l and-Zandangintermediate section-3^, all relatively thin and mounted in engagement with each other in parallel vertical planes. The frame pattern is placed in the intermediate section 3 and after the sand or equivalent molding material has been properly packed around it, is drawn therefrom, sand being also packed in the two outside sections 1 and 2, and the whole assembled so that when ready for the molten metal to be poured into the same, the plane of the metal-receiving cavities or the plane of the frame itself is vertical.

29, 1920. Serial No: 420,436. 1

dInf a vtypic'al case the: :frame would jconsist of afrelatively straightftop member, a bot- ,.tom;member ;5 substantially parallel there- Q with,-an incfinedfend.; member vconnecting one end af the bottom member 5 with the l v extended adjacent iend of the .top member 4, provide anfendmember'f?, inclined members 8 and 9 connectingthe `end member with the top and bottom. members 4 and 5 respectively, and three pairsiof pedestal .legs 10-10, 10a-'10,

bottom, *member` .in lvsubstantially vparallel relation. A .bracingmemben 20 also connects the. membersfl. andV -5Y pedestalmembers'fl() and-103.1.;

an'd,10b'-10P,.extendin`g iromthe,v top tothe .In accordance with myinventiona riser. or

. @.2 feeder-head2Lisqprovided forthe'full length of the top rail onframe. memberf. and a gate L11,is,providedwhereby the molten steel delivered tothemoldj atene-.end of the endv It is Particularly ytaba110te -1fthat.ir ace elasticonSmeldbletmatsrialSuch as.

-Hwithf the .cpntractionfojif-the .adjacent fbodiesf got, metal as .wouldgbethe Vcase if. unyieldingsolidcores .wereemployedg f When the moltencsteel?x i gate 11, it first fills the space defining thebot- .tomgmembendandthereafter. rises through fthe, pedestaldegspand,inclined., members 6. and t3, ultimately lfillngjthe sp ace y.for thel top member :4, andJtbsrSer savties .12 and 2L .Th.ere'f1s. thus providedl .in said., Irisers a mass tom and; substantiallyvertical. framey memto' 'insure a nin' supply' gemaal te. the boe,

between tlilelatter and the `giitefl1j'are'jalso y preferably`-"mader hollow an'd-- filled" witlfiI stravvI or' the likeso that therii'iish'e'd`castingA 'ed fand' and 'i members isfassured owing DiefI cation and-avoids fthe:- cracking or checking which-has-hitherto lbeen found to occur at or adjacent to the points where they join the v.said Vineiriloer 4, preventing .also .the in teifn'al'stresses`,.which` at these nsaine points' have been found to cause' failure under conditions attending their usa-zon-locomotives The tendency to crack or check is likewise reduced or prevented byf the use :ofthe -liollow yielding cores 14e-A18 wliiht owing to their-"rinlieren'tI elasticity or to '-the'i burning outlof theirleoi'n'bstible. contents,j i 'permit the" contraetio'iif ofl`theeoolingmietaliii the' var-iousffranie members,-iwithorietting up i inljtliri'ou's finte'rnal stresses! `I- f 'i's :further n'o'ted'tliattheriser heads l2 and- 21 :are wholly 'outside of' "the *pedestalcavities scithat-the' presence of sound-metal inthe'pedestl'legs as well'as in'theinclin-- t'O thel risingbf i'ai'iy"freignlfinateriall Athrough -f and outetth'emfince'fthfmassflvithine'the Cavity 'ier iti'ie head@ Mievr, -byg Casting; ther-rame ira vertical 51ans; thef'ahiqnt of@ the actions ffthfheatesj the'metai ovjsirito mermaid; lfis at agminimmifyandjin aiiycasefwhat feiv parti-clearaiegpresent,1 aait-f `into members) patieu'lriyfthef member fi 'which' constitutes' the topfmemtep; mf'ftiie frame,

will be foundftofibe'fsoundand perfectinf practically#eve'iy'casting madel" i The cores between 'tlie'frifsejrsl and-12 andA `geneo'us in r'all it'sf 'members but-1 is "free from all 4internal ystresses-itlie" procedure above denedxlia'ving been found per'mitfof the full unrestrictednatural'shrinkage ofl fthe metal during cooling' Withoutthe ,productionl offimpe'rfect castinzgfs".l l f i A I claim: 1. The` method of casting a locomotive side frame `which consistsin'orniing arnold of the'fran'ie with" a 'riser cavity.. cti-extensive withl one of the'lon'giti'idiiial'members tl'ieie'-`.

of; andl pouring, the casting with thecarvities defining qthefraine in a vertical plane i yand below the riser'c'avit". i' i 2.' The 'iriethod'ol' casting a locomotive side frime-wishenesbffonehga 1MM? 'the ri'ser ,cavities and between the 4. The method of casting alocomotiveside" frame wihibh f'consists iiifoijminga mold (f said traine with yieldable cores between *the lo'ngirtudinally"extending frame members vaIidV-a" riser' "cavity(coletensive with and above the top framefmember; and pouring the'lcasting with the; vmold in position j-to cause `the *moltenl metal to successively' fill thefoavitydefining` the' bottom Vfmember of thel frame, the cavities defining the pedestallegs and' the"ri'sercavity.

"t'lhe'fmethodof casting a locomotive side 'iframe -vv'hichy :consists 'in forming 'a mold offltli ai'idiioi'ir'ingf 4the4 molten metal' ofi the casting into the cavity of one of theJ endiframe members' with* the'z xmold iii -position to cause the Inoltei'i'fmetal 't'o VAsuccessively 'fill-'the Acavity forltlie b'c'ttom4 longitudinal frame member, the cavities for the pedestal legs, tlie`top frame member and thef riser cavity aboveV tlieffsame.

6.*'Tlie` method ofcastiiigrr a locomotive side nframe which consists in Jforming a moldofthe fra'i'ne 'with a riser cavityco-ext'ensive with the top frame member. a gate leading into'onev ofthe'end frame members and a second riser cavity'between the gate 'and said first riser cavity; and pouring the castingr witlithe'frame and riser cavities in a vertical pla'ne.

7.".l`he* method of casting a locomotive side frz'imewliioh consists in forminfrr a mold of the frame with a riser cavity cti-extensive with-'the top frame member, a. `gate leading iiitouone,- ofthe1 end frame members and a second'i'isei'. cavity between the gate and saidvv irst riser cavity; and pouring the casting with the frame and riser cavities in a verti cal plane`,ftheie being hollow'cores between forthevertical; frame members.

l FR-ANK-BR1NER ef'framejwith 1a' riser cavityjcoeitensive wit "one of the-'longitudinalframe'lmembers cavities 

